A Missing Authorization vulnerability in the disks.createSnapshot and regionDisks.createSnapshot APIs in Google Compute Engine versions prior to 2026-08-31 on Google Cloud Platform allows an authenticated attacker to exfiltrate cross-project disk data.


This vulnerability was patched on 31 August 2026, and no customer action is needed.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00351.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://docs.cloud.google.com/compute/docs/security-bulletins#gcp-2026-073 cve-icon cve-icon
History

Tue, 27 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
Description A Missing Authorization vulnerability in the disks.createSnapshot and regionDisks.createSnapshot APIs in Google Compute Engine versions prior to 2026-08-31 on Google Cloud Platform allows an authenticated attacker to exfiltrate cross-project disk data. This vulnerability was patched on 31 August 2026, and no customer action is needed.
Title Missing Authorization in Compute Engine allows Cross-Project Disk Exfiltration
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/U:Clear'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GoogleCloud

Published:

Updated: 2026-10-27T09:02:32.461Z

Reserved: 2026-09-03T16:39:24.330Z

Link: CVE-2026-85299

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-27T10:16:56.500

Modified: 2026-10-27T15:08:50.630

Link: CVE-2026-85299

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T10:45:06Z

Weaknesses